body
{
    margin: 0;
}

.bmi1
{
    background-color: gray;
    height: 30px;
}
.bmi2
{
    background-color: gray;
    height: 30px;
}
.bmi3
{
    background-color: gray;
    height: 30px;
}
.bmi4
{
    background-color: gray;
    height: 30px;
}
.bmi5
{
    background-color: gray;
    height: 30px;
}
.bmi6
{
    background-color: gray;
    height: 30px;
}
.bmi7
{
    background-color: gray;
    height: 30px;
}
.bmi8
{
    background-color: gray;
    height: 30px;
}